going from a 3600 to 4500-5000 stall

right now I have a 3600 ATI stall converter an my best 60ft is a 1.75 I'd like to get that down,I'm wondering going from a 3600 to 4500-5000 stall will help.

My current mods is this..1970 30 over 340,keith Black pistons its been balanced,Victor 340 intake 750 AED carb, unknown soild lift cam,eldebrock rpm heads with 1.6 gold crane rollor rockers,MSD 6al box an MSD Diss,456 gears,275x60x15 hossier drag radials, TTI longtubes with H pipe with 2 chambers flowmasters. Thanks Jimmy.

.512 light 500 is perfect
1.75 60ft
5.10 330ft
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